Talking machine



W. WEIGEL TALKING MACHINE Filed July 8 1953 2 Sheets-Sheet 1 Patented Oct. 6, 1936 UNITED STATES PATE T OFFICE Application July 3, 1933, Serial No. 679,531 In Germany April 26, 1328 3 Claims.

This invention relates to a phonograph provided with a device for automatically effecting the turning of a record played on one side to the extent of 180 and for returning the turned record 5 to the turntable.

Compared with known phonographs fitted with a device for attaining the same objects, the phonograph according to the invention diifers in so far as its record gripper comprises two clamping jaws [0 or arms arranged on a shaft which is disposed on the bracket for the jaws and terminates at a small bevel gear in mesh with a larger bevel gear secured, with a ratchet wheel, to a bolt. This ratchet wheel is engaged by a pawl which by means of rods actuated by an eccentric turns the clamping jaws 180, and a collar provided on the gripper shaft and having flattened portions against which a leaf spring abuts arrests the clamping jaws in their normal or swung-out position involving a turn of 180.

By way of example, the invention is illustrated in the accompanying drawings, in which Figure l. is a top view of .a talking machine of the magazine type; Fig. 2, a sectional side viewof the record gripping mechanism; Fig. 3, a front view thereof; Fig. 4, a view of the locking device for the gripper arms; Fig. 5, a top view of agripper arm; Fig. 6, a partial side view of the actuating device for opening and closing the gripper arms; Fig. 7, a top view on a larger scale of the device shown in Fig. 6; Fig. 8, a side view of the device shown in Fig. '7; and Fig. 9 shows the bell crank rods actuated by an eccentric.

Referring to the drawings, under the turntable I for the record 9 a worm wheel gear, not shown, is arranged which causes slow motion of a. shaft 2 disposed in bearings 3. The shaft 2 carries the eccentrics 4 and 8 provided with lifting cams, and above the eccentrics lever arms I I fitted with noses ID are arranged in the. bearings H as shown in Figs. 1 and 9. Each lever arm II is connected with-a tension spring, and thus continually resting on the respective eccentrics 4 and 8. Each levei arm II is further connected with the rods I4, l5, l6, l1, it, each of the'rods being ends, as indicated in Fig. 3, and are firmly connected with the hollow bolts 22, 23 displaceably guided in bearings 25, 2t screwed onto the plate 24. In the bolts at 29 bent levers 21, 28 are rotatably disposed whichpossess the rollers 30, 3|, 5 JD and ti. To insure perfectly vertical guiding of the hollow bolts 2, 23, a continuous bolt 92 is inserted therein. To the plate 24 vertically superposed angle pieces 33, 34 are firmly secured, and the bolts 22, 23 are also guided through these in angle pieces 33, 34 and arranged so that they are in continual contact with the angle pieces 33, 34 and the rollers 33', 3 i disposed in the bent levers 2'3, 28 when the grippers are closed. The clamping jaws ii are pressed together by the compression l5 springs 36 disposed on the bolts 35. The member 24 is firmly disposed on the shaft 3L rotatably disposed in the oval recessed arm 38 and connected with a bevel gear 39 which meshes with the bevel gear 40 which is twice as large as the gear 39. The gear 49 is connected by the bolt M with a ratchet wheel 42, as indicated in Figs. 7 and 8, which is engaged by the pawl 43. In front of the plate 24 on the shaft 31 a collar 44 is disposed which possesses the parallel faces 45, as shown in Fig. 4, and on one of these faces a leaf spring 45 presses continually which by a support 4'] is attached to the gripper arm 38 movably disposed on the shaft 55 in the arms 56 which surround a hollow shaft 53 rotatably disposed in a bracket 58 on a base plate 51. According to Figs. 2, 6 and' 8, above the rollers 3| a double-armed lever 49, 50 is disposed on the arms 48 in such a way that a tongue 5| connected with the arm 50 slightly rests on the rollers 3|,

as shown in Fig. 2. The arms 48 are connected with a ring 52 disposed on a hollow shaft 53.

On the lower portion of the hollow shaft 53 two interconnected and oppositely disposed arms 60,

5| are arranged which are articulated to the rods l4, l5 connecting one of the elbow levers l9 with the eccentrics 4 or 5.

The rods l6, ll, l8 connected with the cocentrics 5, 1, and 8 are articulated to the toggles i6, I 1., l8 suspended from the bearing 64 and connected with the rods l6", l1", l8" passing into the hollow shaft 53. a

The rod I1" is connected by the hollow shaft 53 with the double-armed lever 49, 5t and by the lever 65. The rod I8 is actuated by the eccentric 8 and acts on the rod it" which is connected with the carrier 66 on the arms 56 and with the toggles 61, 61' disposed in the carrier 6,6. From the boss lit-of the toggle 61' a rod 69 leads to a finger 10 which is firmly disposed on the shaft to 55 which the gripper arm 38 is firmly connected also. The rod l6" actuated by the eccentric 8 is connected by the hollow shaft 53 with the lever 88 arranged in the carrier 68 on the bearing 56. The

arms are in the position shown in Fig. 1, where upon the eccentric 1 begins to act by pressing down, by means of the rods l1, l1, I1", 65, the tongue 5| attached to the double-armed lever 49, 58, which in turn presses on the roller 3| of the bent lever 28. The roller 3| is thus pressed against the immovable angle piece 34 and the bolts 23 firmly connected with the lower jaw 2| are drawn down in vertical direction, so that the gripper arms 2| are opened. In this open position the entire gripper moves in the direction of the arrow A in Fig. 1 prior to moving towards,

the record magazine 2|) and picking up a record. For this purpose the eccentric 5 is provided which acts on the rod |5 (arrow B in Fig. 7) so that the rod |5 drives the arm 88 and the hollow shaft 53 to which the arm 68 is firmly connected is displaced in the bracket 58. The hollow shaft 53 moves also the arms 56, the gripper arm 38 and thus the clamping jaws 2| in horizontal direction.

When the gripper has been swung out sufliciently and is adjusted so that it can grip a record, the eccentric I will release the tongue 5| and the lower clamping jaw 2| will move vertically up while the lower compression springs 36 clamp the record 9 between the jaws 2 I. This clamping of the record is made quite efiective owing to the fact that the jaws 2| have inwardly bent ends. In this way cushioning is provided on both sides and the record is particularly firmly gripped by the ends of the gripper.

Then the eccentric 4 will draw the lever arm 8| by the rod H in the direction of the arrow 0 and turn the hollow shaft 53, the gripper arm 38 and the jaws 2| with the record 9 back until the central aperture in the record will be exactly above the pin 16 in the turntable whereupon the eccentric 1 begins to act and the tongue 5| causes the release of the record 9 from the clamping jaws. The record lies then freely on the rotating turntable and is driven in the customary manner while the tone arm, not shown, puts it's eedle on the record and after the record has been played on one side is returned again to its initial position ,outside the record.

The record 9 is then caught again by the gripper arms 2| and the arm 38 together with the record 9 is turned 'after the record has previously been lifted about 45"; For this purpose the eccentric 8 acts on the rod' l8 (Fig. 8), moves the toggle I8 and draws the rod l8 vertically down. This motion is transmitted to the levers 61 and 61', the rod 69 and the lever 18 firmly connected with the shaft 55. The lever 18 is moved in the direction of the arrow E in Fig. 8 and thus lifts the arm 38, which rotates in the bearings 56, and also the entire gripper with the record to the extent of 45. In this position the gripper remains fora time before the eccentric 6 acts on the rod l5 to move the elbow lever l8 which draws down the rod IS" in vertical direction. The rod l8" engages the elbow lever 88, 8| and moves the rod 8| in the direction of the arrow E in Fig. 8, so that the pawl 43 articulated to the rod 8| engages the next tooth of the ratchet wheel 42 which is moved about onefourth of a circle. The ratchet wheel 42 is firmly connected by the shaft 4| with the large bevel wheel 48 which is thus also turned to the same extent. The wheel 48 transmits this motion to the bevel gear 39 which has half the size of the gear 40 and is therefore turned 180 like the gripper 2| with the record 9. As soon as the record has been turned 180", the spring 46 rests tightly on one of the surfaces 45 on the collar 44 and arrests the gripper and record in horizontal position.-

The record 9 is then placed on the turntable and the lever I0 and the parts 69, 61, 61, I8 and 8 move in opposite direction to the direction indicated by the arrow E in Fig. 8 whereupon the gripper arm 38, the gripper device and the record 9 are slowly lowered into horizontal position in such a way that the central aperture .of the record is placed accurately above the pin arm moves away to such an extent that the needle of the diaphragm is disposed above the idle grooves of the record. At this moment the record is gripped by the jaws 2|, and the entire gripping device moves again in the direction of the arrow A and conveys the record 9 into the magazine, the motion of the gripping device in the direction A taking place in the manner described. When the record has been placed in one of the compartments of the magazine 28, the jaws of the gripping device will open and the latter move quickly back into the position shown in Fig. 1.

I claim:-

1. A phonograph, in which the records are engaged by a gripper to be turned 180 and released again by the gripper after such a motion, comprising,a turntable, a pair of superposed ripper arms for lifting a record from the turntable and reversing it, a bracket for said gripper arms, a shaft disposed in said bracket, a bevel gear connected with the end of said shaft, a bevel gear of larger size than said first bevel gear and in mesh therewith, a ratchet wheel for said second bevel gear, a bolt, on which said second bevel gear and ratchet wheel are secured, a. pawl engaging said ratchet wheel, rods actuated by an eccentric for swinging the gripper arms in a predetermined degree, a collar having flattened parts provided on said shaft, and a leaf spring engaging said flattened parts for locking the gripper arms in their normal and swungout position involving a turn of 180.9.-

2. A phonograph according to claim 1, wherein the superposed gripper arms are under spring pressure, andcomprising bolts firmly connected with the arms and displaceably guided in a plate secured to the shaft carrying the smaller bevel one end of one of said levers being within range of a tongue connected by rods with a cam, the other end of said lever influenced by said tongue being connected with a roller and positioned within range of one of said angle pieces to draw down the bolt connected with the lower one of said superposed gripper arms to open the gripper.

3. A phonograph according to claim 1, wherein the superposed gripper arms are under spring pressure, and comprising hollow bolts firmly connected with the arms and displaceably guided in a plate secured to the shaft carrying the smaller bevel geana. continuous rigid bolt within said hollow bolts to insure perfectly vertical guiding thereof, angle pieces secured to said plate, .said angle pieces being penetrated by the outer ends of said bolts forming each a bearing for a bent lever, one end of one of said levers being within range of a tongue connected by rods with a cam, the other end of said lever influenced by said tongue being connected with a roller and positioned within range of one of said angle pieces to draw down the bolt connected with the lower one of said superposed gripper arms to open the gripper.

WALTER WEIGEL. 

